SS2 Second Term Data Processing Lesson Note – The Internet

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WEEK 3

TOPIC:  THE INTERNET

CONTENT: 

• Definition of Internet.
• Internet browsers.
• Benefits of Internet.

SUB-TOPIC 1:

Definition of Internet

 The Internet is a global system of interconnected computer networks that use the Standard Internet Protocol Suite (TCP/IP) to serve billions of users worldwide.

It is a network of networks that consists of millions of private, public, academic, business and government networks of local to global scope that are linked by a broad array of electronic and optical networking technologies. Simply put, the Internet is a collection of computers, all linked together, to share information worldwide. It is the largest computer network in the world.

The Internet Browser

Is a software application for retrieving, presenting and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier (URI/URL) that may be a web page, image, video or other piece of content.  Hyperlinks present in resources enable users easily to navigate their browsers to related resources.

 

Some popular browsers are: Internet Explorer, Opera, Safari, Chrome, Mozilla, Netscape navigator.

Features in Main Browser Window

1. The Title bar
2. The menu bar

iii.       Tools and Help

1. iv. The tool bar
2. Address bar

Internet Services

1. E-mail: this service permits user to send and receive mail from anywhere in the world.
2. World Wide Web: A network service that gives room for an individual or organization to set up a special server or site from which other users can obtain special information.

iii.       Voice and Video Conferencing:  business and institution use the internet for voice and video

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